Astronomers conducted a radio scan of interstellar object 3I/ATLAS, finding no credible signs of artificial technology, supporting its natural origin.

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Harvard scientist Avi Loeb presents chilling theories that interstellar object 3I/ATLAS is alien technology, citing anomalies ...

Is 3I/ATLAS an alien probe? Breakthrough Listen uses the Green Bank Telescope to search for technosignatures as the ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Prehistoric sea cows, a mouse-sized opossum, a smiling deep-sea fish and live-birthing toads highlight a year of discoveries ...

These findings come from data collected by NASA’s Cassini spacecraft, which orbited Saturn from 2004 to 2017. The spacecraft ...

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

Alligator weed, an invasive plant species native to South America, is spreading in rivers and lakes in Japan. The aquatic ...

Mars has never looked more like a planet built for hiding secrets. A cluster of eight vast, water-carved caves appears almost engineered to shield fragile chemistry, or even biology, from the brutal ...

The past 12 months have read like a science-fiction novel, with thousands of UFOs swarming over the US East Coast, an ...